However, a source said police had already traced all suspected wrongdoers connected to the fraud case.

“All suspects are now in detention,” the source said. “Police will talk to banks and plan to hold a press conference on the case on Tuesday [tomorrow].”

A team from the Metropolitan Police Division 1 arrested Paveena late Saturday night, the source said. She reportedly confessed to using the national identity card of private company worker Nicha Kiatthanapaiboon to open five bank accounts.

Nicha, who was detained for three days over a fraud charge before being released on bail, claimed she had applied for a new ID card after her wallet went missing in early October, but the culprit was still able to use the old card to open accounts.

The source said Paveena had told police that a man identified only as Simon had offered to pay her Bt10,000 for opening the five accounts but she said eventually she was only paid Bt4,000.

Asked about the relatively large amount of money deposited in and withdrawn from her bank accounts, Nicha said the accounts were for her family business.

She added that on average, the cash flow volume was about Bt100,000 a month.

Asked about reports that she had talked on the phone with the suspected wrongdoer, Nicha said she suspected that her stolen ID card might have also been used to register SIM cards for cell phone services.

Nicha also admitted that she had lost her national ID card three times – once in 2014 and twice last year.